Space FlightAstronautsWeightlessnessSpacecraftCosmic RadiationEcological Systems, ClosedUnited States National Aeronautics and Space AdministrationLife Support SystemsSpace SimulationSpace Motion SicknessAerospace MedicineExtraterrestrial EnvironmentPleurodelesRadiation MonitoringHypergravityWeightlessness SimulationRailroadsGasolineExtracellular Space